Improving the photovoltaic performance by employing alkyl chains perpendicular to the π-conjugated plane of an organic dye in dye-sensitized solar cells
We demonstrate that employing long alkyl chains perpendicular to the π-conjugated plane of the backbone is a promising strategy to construct efficient organic sensitizers for dye-sensitized solar cells (DSSCs) with efficient photovoltaic performance. The perpendicular alkyl chains have been suggeste...
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Veröffentlicht in: | Journal of materials chemistry. C, Materials for optical and electronic devices Materials for optical and electronic devices, 2019-06, Vol.7 (24), p.7249-7258 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | We demonstrate that employing long alkyl chains perpendicular to the π-conjugated plane of the backbone is a promising strategy to construct efficient organic sensitizers for dye-sensitized solar cells (DSSCs) with efficient photovoltaic performance. The perpendicular alkyl chains have been suggested as superior alternatives to parallel alkyl chains for preventing intermolecular interactions in D-π-A dyes, and therefore co-adsorption with deoxycholic acid (DCA) can be avoided. DSSCs employing iodine/iodide electrolytes and an organic dye
LJ-8
with long alkyl chains perpendicular to its π-conjugated plane produced a high photovoltage of 0.801 V and a high conversion efficiency over 8%.
We demonstrate that employing alkyl chains perpendicular to the π-conjugated plane is a promising strategy to construct efficient sensitizers for DSSCs. |
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ISSN: | 2050-7526 2050-7534 |
DOI: | 10.1039/c9tc01520e |